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Old 2013-08-12, 21:03   #10
EdH
 
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"Ed Hall"
Dec 2009
Adirondack Mtns

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OK,
Code:
$ python ecm.py -threads 2 -c 2000 43000000 <ecmIn
...
-> Working on number: 859816614827472478...578490215531107749 (121 digits)
-> Currently working on: job4791.txt
-> Starting 2 instances of GMP-ECM...
-> ./ecm -c 1000 43000000 < job4791.txt > job4791_t00.txt
-> ./ecm -c 1000 43000000 < job4791.txt > job4791_t01.txt
 
GMP-ECM 6.4.4 [configured with GMP 5.1.1, --enable-asm-redc] [ECM]
Using B1=43000000, B2=240490660426, polynomial Dickson(12), 2 threads
Done 285/2000; avg s/curve: stg1 100.8s, stg2 36.44s; runtime: 19837s

Run 285 out of 2000:
Using B1=43000000, B2=240490660426, polynomial Dickson(12), sigma=306416374
Step 1 took 101114ms
Step 2 took 36583ms
********** Factor found in step 2: 154499827420010610820657248119651788418298611
Found probable prime factor of 45 digits: 154499827420010610820657248119651788418298611
Probable prime cofactor 55651622994376897358779815364928346078694944874963398571536226939862492842759 has 77 digits
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